特点
1:4 2-Wire Multiplexer/Switch
Connect SDA and SCL Lines with 2-Wire Bus Commands
Supply Independent Bidirectional Buffer for SDA and SCL Lines Increases Fan-Out
Programmable Disconnect from Stuck Bus
Compatible with I2C and SMBus Standards
Rise Time Accelerator Circuitry
SMBus Compatible ALERT Response Protocol
Two General Purpose Inputs-Outputs
Prevents SDA and SCL Corruption During Live Board
Insertion and Removal from Backplane
±10kV Human Body Model ESD Ruggedness
24-Lead QFN (4mm × 5mm) and SSOP Packages
典型应用
典型应用
描述
The downstream channels are also provided with ALERT1-ALERT4 inputs for fault reporting. Programmable timeout circuitry disconnects the downstream buses if the bus is stuck low. When activated, rise time accelerators source currents into the 2-wire bus pins to reduce rise time. Driving the ENABLE pin low restores all features to their default states. Three address pins provide 27 distinct addresses.
The LTC4306 is available in 24-lead QFN (4mm × 5mm) and SSOP packages.